Home / 756,918,361.71-1,135,372,778.25-407,329,102.35

Finding the Fourth Proportional to 756,918,361.71, 1,135,372,778.25 and 407,329,102.35

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Solution

The fourth proportional to 756,918,361.71, 1,135,372,778.25 and 407,329,102.35 is: 610,991,089.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    756,918,361.71 : 1,135,372,778.25 = 407,329,102.35 : x
  2. Step 2: Convert to fraction form
    756,918,361.71/1,135,372,778.25 = 407,329,102.35/x
  3. Step 3: Cross multiply
    756,918,361.71x = 1,135,372,778.25 × 407,329,102.35
  4. Step 4: Simplify right side
    756,918,361.71x = 462,470,374,597,198,144
  5. Step 5: Solve for x
    x = 462,470,374,597,198,144/756,918,361.71
  6. Step 6: Final answer
    x = 610,991,089.65

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.